meri saheli magazine online Published this article page no 28 About Voyager mission Launched in the 1970s and the probes sent by NASA were only meant to explore the outer planets – but they just kept on going. Voyager 1 departed Earth on 5 September 1977 a few days after Voyager 2 and left our solar system in 2013. The mission objective of the Voyager Interstellar Mission (VIM) is to extend the NASA exploration of the solar system beyond the neighborhood of the outer planets to the outer limits of the Suns sphere of influence and possibly beyond. The Voyager spacecraft are the third and fourth human spacecraft to fly beyond all the planets in our solar system. Pioneers 10 and 11 preceded Voyager in outstripping the gravitational attraction of the Sun but on February 17 1998 Voyager 1 passed Pioneer 10 to become the most distant humanmade object in space. Accomplishments so far Voyager 2 is the only probe ever to study Neptune and Uranus during planetary flybys. It is the second manmade object to leave our planet. Voyager 2 is the only spacecraft to have visited all four gas giant planets — Jupiter Saturn Uranus and Neptune — and discovered 16 moons as well as phenomena like Neptunes mysteriously transient Great Dark Spot the cracks in Europas ice shell and ring features at every planet. What is Interstellar space? Scientists use the heliopause to mark where interstellar space begins although depending on how you define our solar system it can stretch all the way to the Oort Cloud which begins 1000 times farther away from the sun than Earths orbit. The Heliosphere The heliosphere is a bubble around the sun created by the outward flow of the solar wind from the sun and the opposing inward flow of the interstellar wind. That heliosphere is the region influenced by the dynamic properties of the sun that are carried in the solar wind–such as magnetic fields energetic particles and solar wind plasma. The heliopause marks the end of the heliosphere and the beginning of interstellar space meri saheli magazine online buy.
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